The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 23, 2024
Filed:
Apr. 08, 2022
Apple Inc., Cupertino, CA (US);
Joonhoi Hur, Sunnyvale, CA (US);
Jochen Schrattenecker, Alberndorf in der Riedmark, AT;
Bin Xiao, San Ramon, CA (US);
Andre Hanke, San Jose, CA (US);
Harald Pretl, Schwertberg, AT;
Rastislav Vazny, Saratoga, CA (US);
Bernhard Sogl, Unterhaching, DE;
Andreas Menkhoff, Oberhaching, DE;
Apple Inc., Cupertino, CA (US);
Abstract
An electronic device may include wireless circuitry with a transmit antenna that transmits signals and a receive antenna that receives reflected signals. The wireless circuitry may detect a range between the device and an external object based on the transmitted signals and the reflected signals. When the range exceeds a first threshold, the wireless circuitry may use the transmitted signals and received signals to record background noise. When the range is less than a second threshold value, the wireless circuitry may detect the range based on the reflected signals and the recorded background noise. This may allow the range to be accurately measured within an ultra-short range domain even when the device is placed in different device cases, placed on different surfaces, etc.